Last time on Mommy's Girl, Riley Reid and sister Goldie came up with the perfect plot to have their new stepmother Mercedes Carrera at their beck and call. Knowing their new mother has something she's hiding, sisters Riley and Goldie did some research online, discovering Mercedes dark past of a lesbian incident with her previous stepdaughters. Goldie lures her new mother into her room this time, seducing the gullible MILF to repeat the mistakes she swore she would never make again.Mercedes hides in the bathroom, going over what in the hell just happened. If her husband found out she had sex with his daughter, this would mean another marriage down the drain. Riley walks into the bathroom disrupting her thoughts, making sure her mommy is OK. Mercedes assures her that all is well and to get ready for class. But Riley's thoughts aren't about school, she is ready for a lesson only her mommy can teach! Riley admits she knows about her mom's history and the lesbian escapade that transpired with Goldie and it is Riley's turn to get that lesbian relief!Mercedes complies with her daughter's wishes, giving in to pleasing Riley's nubile pussy. Riley spreads her legs, ready for her mother's warm soothing mouth. Riley's pussy juice flows down Mercedes chin, as she craves to know what it tastes like. Mercedes places her hand over Riley's pussy lips, stroking her clitoris and inducing Riley's rapturous orgasm. Riley's promises to be a good girl and not tell her father in exchange for a chance to eat her new mother's sweet pussy. Mercedes has no choice but to allow her daughter this request, so she spreads her legs exposing her shaved pussy for Riley to indulge promising Riley she will ejaculate all over her face. Riley wants more than just her mother's cum over her face, she asks Mercedes to pick her off the floor while she fingers her from behind. What has Mercedes gotten herself into?